Scientists tell us even three 20-minute walks a week help us live happier, healthier and longer. As a committed walker since I did the 30-mile Hike For Hunger in high school I love what this exercise does for the body. Yet what I crave most of all is what it does for my head.

I've never been a huge fan of exercise. I figured if I did something extreme, like selling my car, I could reduce my carbon footprint while getting healthy and saving money. In 2013, I channeled my inner Forrest Gump and logged over 500 miles. Here are 10 reasons I'm hooked.

Many people aren't even aware of how little they move in the course of a day. Our lives have become very simplified by technology. Consequently, it is absolutely essential that you become more aware of your daily activity.